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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <stddef.h> | |
6 | |
7 #include "base/files/file_path.h" | |
8 #include "base/files/scoped_temp_dir.h" | |
9 #include "base/macros.h" | |
10 #include "base/message_loop/message_loop.h" | |
11 #include "base/run_loop.h" | |
12 #include "base/strings/stringprintf.h" | |
13 #include "base/timer/mock_timer.h" | |
14 #include "base/values.h" | |
15 #include "net/base/io_buffer.h" | |
16 #include "net/base/net_errors.h" | |
17 #include "net/base/test_completion_callback.h" | |
18 #include "net/socket/unix_domain_client_socket_posix.h" | |
19 #include "remoting/host/security_key/gnubby_auth_handler.h" | |
20 #include "remoting/host/security_key/gnubby_socket.h" | |
21 #include "remoting/proto/internal.pb.h" | |
22 #include "testing/gtest/include/gtest/gtest.h" | |
23 | |
24 namespace remoting { | |
25 | |
26 namespace { | |
27 | |
28 const char kSocketFilename[] = "socket_for_testing"; | |
29 | |
30 // Test gnubby request data. | |
31 const unsigned char kRequestData[] = { | |
32 0x00, 0x00, 0x00, 0x9a, 0x65, 0x1e, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, | |
33 0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x60, 0x90, | |
34 0x24, 0x71, 0xf8, 0xf2, 0xe5, 0xdf, 0x7f, 0x81, 0xc7, 0x49, 0xc4, 0xa3, | |
35 0x58, 0x5c, 0xf6, 0xcc, 0x40, 0x14, 0x28, 0x0c, 0xa0, 0xfa, 0x03, 0x18, | |
36 0x38, 0xd8, 0x7d, 0x77, 0x2b, 0x3a, 0x00, 0x00, 0x00, 0x20, 0x64, 0x46, | |
37 0x47, 0x2f, 0xdf, 0x6e, 0xed, 0x7b, 0xf3, 0xc3, 0x37, 0x20, 0xf2, 0x36, | |
38 0x67, 0x6c, 0x36, 0xe1, 0xb4, 0x5e, 0xbe, 0x04, 0x85, 0xdb, 0x89, 0xa3, | |
39 0xcd, 0xfd, 0xd2, 0x4b, 0xd6, 0x9f, 0x00, 0x00, 0x00, 0x40, 0x38, 0x35, | |
40 0x05, 0x75, 0x1d, 0x13, 0x6e, 0xb3, 0x6b, 0x1d, 0x29, 0xae, 0xd3, 0x43, | |
41 0xe6, 0x84, 0x8f, 0xa3, 0x9d, 0x65, 0x4e, 0x2f, 0x57, 0xe3, 0xf6, 0xe6, | |
42 0x20, 0x3c, 0x00, 0xc6, 0xe1, 0x73, 0x34, 0xe2, 0x23, 0x99, 0xc4, 0xfa, | |
43 0x91, 0xc2, 0xd5, 0x97, 0xc1, 0x8b, 0xd0, 0x3c, 0x13, 0xba, 0xf0, 0xd7, | |
44 0x5e, 0xa3, 0xbc, 0x02, 0x5b, 0xec, 0xe4, 0x4b, 0xae, 0x0e, 0xf2, 0xbd, | |
45 0xc8, 0xaa}; | |
46 | |
47 } // namespace | |
48 | |
49 class GnubbyAuthHandlerLinuxTest : public testing::Test { | |
50 public: | |
51 GnubbyAuthHandlerLinuxTest() | |
52 : run_loop_(new base::RunLoop()), last_connection_id_received_(-1) { | |
53 EXPECT_TRUE(temp_dir_.CreateUniqueTempDir()); | |
54 socket_path_ = temp_dir_.path().Append(kSocketFilename); | |
55 remoting::GnubbyAuthHandler::SetGnubbySocketName(socket_path_); | |
56 | |
57 send_message_callback_ = | |
58 base::Bind(&GnubbyAuthHandlerLinuxTest::SendMessageToClient, | |
59 base::Unretained(this)); | |
60 auth_handler_ = | |
61 remoting::GnubbyAuthHandler::Create(nullptr, send_message_callback_); | |
62 } | |
63 | |
64 void WaitForSendMessageToClient() { | |
65 run_loop_->Run(); | |
66 run_loop_.reset(new base::RunLoop); | |
67 } | |
68 | |
69 void SendMessageToClient(int connection_id, const std::string& data) { | |
70 last_connection_id_received_ = connection_id; | |
71 last_message_received_ = data; | |
72 run_loop_->Quit(); | |
73 } | |
74 | |
75 void CheckHostDataMessage(int id, const std::string& expected_data) { | |
76 ASSERT_EQ(id, last_connection_id_received_); | |
77 ASSERT_EQ(expected_data.length(), last_message_received_.length()); | |
78 ASSERT_EQ(expected_data, last_message_received_); | |
79 } | |
80 | |
81 void WriteRequestData(net::UnixDomainClientSocket* client_socket) { | |
82 int request_len = sizeof(kRequestData); | |
83 scoped_refptr<net::DrainableIOBuffer> request_buffer( | |
84 new net::DrainableIOBuffer( | |
85 new net::WrappedIOBuffer( | |
86 reinterpret_cast<const char*>(kRequestData)), | |
87 request_len)); | |
88 net::TestCompletionCallback write_callback; | |
89 int bytes_written = 0; | |
90 while (bytes_written < request_len) { | |
91 int write_result = client_socket->Write(request_buffer.get(), | |
92 request_buffer->BytesRemaining(), | |
93 write_callback.callback()); | |
94 write_result = write_callback.GetResult(write_result); | |
95 ASSERT_GT(write_result, 0); | |
96 bytes_written += write_result; | |
97 ASSERT_LE(bytes_written, request_len); | |
98 request_buffer->DidConsume(write_result); | |
99 } | |
100 ASSERT_EQ(request_len, bytes_written); | |
101 } | |
102 | |
103 void WaitForAndVerifyHostMessage(int connection_id) { | |
104 WaitForSendMessageToClient(); | |
105 std::string expected_data; | |
106 expected_data.reserve(sizeof(kRequestData) - 4); | |
107 | |
108 // Skip first four bytes and build up the response string. | |
109 for (size_t i = 4; i < sizeof(kRequestData); ++i) { | |
110 expected_data.append(1, static_cast<unsigned char>(kRequestData[i])); | |
111 } | |
112 | |
113 CheckHostDataMessage(connection_id, expected_data); | |
114 } | |
115 | |
116 protected: | |
117 base::MessageLoopForIO message_loop_; | |
118 std::unique_ptr<base::RunLoop> run_loop_; | |
119 | |
120 // Object under test. | |
121 std::unique_ptr<GnubbyAuthHandler> auth_handler_; | |
122 | |
123 GnubbyAuthHandler::SendMessageCallback send_message_callback_; | |
124 | |
125 int last_connection_id_received_; | |
126 std::string last_message_received_; | |
127 | |
128 base::ScopedTempDir temp_dir_; | |
129 base::FilePath socket_path_; | |
130 base::Closure accept_callback_; | |
131 | |
132 private: | |
133 DISALLOW_COPY_AND_ASSIGN(GnubbyAuthHandlerLinuxTest); | |
134 }; | |
135 | |
136 TEST_F(GnubbyAuthHandlerLinuxTest, NotClosedAfterRequest) { | |
137 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
138 | |
139 auth_handler_->CreateGnubbyConnection(); | |
140 | |
141 net::UnixDomainClientSocket client_socket(socket_path_.value(), false); | |
142 net::TestCompletionCallback connect_callback; | |
143 | |
144 int rv = client_socket.Connect(connect_callback.callback()); | |
145 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
146 | |
147 // Write the request and verify the response. | |
148 WriteRequestData(&client_socket); | |
149 WaitForAndVerifyHostMessage(1); | |
150 | |
151 // Verify the connection is now valid. | |
152 ASSERT_TRUE(auth_handler_->IsValidConnectionId(1)); | |
153 | |
154 // Verify that completing a request/response cycle didn't close the socket. | |
155 ASSERT_EQ(1u, auth_handler_->GetActiveConnectionCountForTest()); | |
156 } | |
157 | |
158 TEST_F(GnubbyAuthHandlerLinuxTest, HandleTwoRequests) { | |
159 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
160 | |
161 auth_handler_->CreateGnubbyConnection(); | |
162 | |
163 net::UnixDomainClientSocket client_socket(socket_path_.value(), false); | |
164 net::TestCompletionCallback connect_callback; | |
165 | |
166 int rv = client_socket.Connect(connect_callback.callback()); | |
167 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
168 | |
169 // Write the request and verify the response. | |
170 WriteRequestData(&client_socket); | |
171 WaitForAndVerifyHostMessage(1); | |
172 | |
173 // Verify the connection is now valid. | |
174 ASSERT_TRUE(auth_handler_->IsValidConnectionId(1)); | |
175 | |
176 // Repeat the request/response cycle. | |
177 WriteRequestData(&client_socket); | |
178 WaitForAndVerifyHostMessage(1); | |
179 | |
180 // Verify the connection is still valid. | |
181 ASSERT_TRUE(auth_handler_->IsValidConnectionId(1)); | |
182 | |
183 // Verify that completing two request/response cycles didn't close the | |
184 // socket. | |
185 ASSERT_EQ(1u, auth_handler_->GetActiveConnectionCountForTest()); | |
186 } | |
187 | |
188 TEST_F(GnubbyAuthHandlerLinuxTest, HandleTwoIndependentRequests) { | |
189 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
190 | |
191 auth_handler_->CreateGnubbyConnection(); | |
192 | |
193 net::UnixDomainClientSocket client_socket(socket_path_.value(), false); | |
194 net::TestCompletionCallback connect_callback; | |
195 | |
196 int rv = client_socket.Connect(connect_callback.callback()); | |
197 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
198 | |
199 // Write the request and verify the response. | |
200 WriteRequestData(&client_socket); | |
201 WaitForAndVerifyHostMessage(1); | |
202 | |
203 // Verify the first connection is now valid. | |
204 ASSERT_TRUE(auth_handler_->IsValidConnectionId(1)); | |
205 | |
206 // Disconnect and establish a new connection. | |
207 client_socket.Disconnect(); | |
208 rv = client_socket.Connect(connect_callback.callback()); | |
209 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
210 | |
211 // Repeat the request/response cycle. | |
212 WriteRequestData(&client_socket); | |
213 WaitForAndVerifyHostMessage(2); | |
214 | |
215 // Verify the second connection is valid and the first is not. | |
216 ASSERT_TRUE(auth_handler_->IsValidConnectionId(2)); | |
217 ASSERT_FALSE(auth_handler_->IsValidConnectionId(1)); | |
218 | |
219 // Verify that the initial socket was released properly. | |
220 ASSERT_EQ(1u, auth_handler_->GetActiveConnectionCountForTest()); | |
221 } | |
222 | |
223 TEST_F(GnubbyAuthHandlerLinuxTest, DidReadTimeout) { | |
224 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
225 auth_handler_->CreateGnubbyConnection(); | |
226 | |
227 net::UnixDomainClientSocket client_socket(socket_path_.value(), false); | |
228 net::TestCompletionCallback connect_callback; | |
229 int rv = client_socket.Connect(connect_callback.callback()); | |
230 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
231 auth_handler_->SetRequestTimeoutForTest(base::TimeDelta()); | |
232 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
233 } | |
234 | |
235 TEST_F(GnubbyAuthHandlerLinuxTest, ClientErrorMessageDelivered) { | |
236 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
237 auth_handler_->CreateGnubbyConnection(); | |
238 | |
239 net::UnixDomainClientSocket client_socket(socket_path_.value(), false); | |
240 net::TestCompletionCallback connect_callback; | |
241 int rv = client_socket.Connect(connect_callback.callback()); | |
242 ASSERT_EQ(net::OK, connect_callback.GetResult(rv)); | |
243 | |
244 auth_handler_->SendErrorAndCloseConnection(1); | |
245 ASSERT_EQ(0u, auth_handler_->GetActiveConnectionCountForTest()); | |
246 } | |
247 | |
248 } // namespace remoting | |
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